Sigma 1.4x EX DG Tele Converter 

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Teleconverter Reviews Sigma
User rating
3.7
out of 5
Editor's rating
1.0
out of 5
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Reviewed by:
Editor
Thursday, 07 February 2008
Average user rating: 3.7 
5 User reviews
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Lens Summary

Overview

1.4x EX DG Tele Converter

The 1.4 EX is placed between the lens and the camera, and it allows the photographer to use the 70-200mm f/2.8 lens as a 98-280m f/4 lens, and the 300mm f/2.8 lens as a 420mm f/4 lens; the high optical performance is maintained and the AF speed is not affected.

Lens Specifications

Details



Main Specification
1.4X
2X
Lens construction 5 elements in 3 groups 6 elements in 5 groups
Focal length 1.4x that of a master lens 2x that of a master lens
Aperture coupling range F2.8 - F32 F2.8 - F32
Reproduction ratio 1.4x that of a master lens 2x that of a master lens
Dimensions 68.5 X 19.5mm
(2.7in. X 0.75in.)		 68.5 X 52mm
(2.7in. X 2.05in.)
Weight 143g (5oz.) 234g (8.3oz.)
SRP £159.99 £199.99

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Editor review :  Sigma 1.4x EX DG Tele Converter
Overall rating (weighted)
1.0
Sharpness
1.0
Build Quality
1.0
AF Speed
1.0
Value for Money
1.0
Editor review following shortly
Why should you care what I think?
My relationship with this item: Editor review
Conclusions at a glance
Would you recommend this Item: Undecided

User Lens Reviews

Average user rating from: 5 user(s)

Overall rating (weighted)
3.7
Sharpness
3.8
Build Quality
4.0
AF Speed
3.4
Value for Money
3.4
 

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0 of 0 people found the following review helpful

great on sigma lens, Thursday, 23 October 2008


Overall rating (weighted)
4.5
Sharpness
5.0
Build Quality
5.0
AF Speed
4.0
Value for Money
4.0
bought this because my Canon televonveror would not work on some of my Sigma lens, no complains what so ever, did a lot of research and knew that it would not work with some of my Canon lens, interent is awesome.
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0 of 1 people found the following review helpful

Sigma APO Teleconverter 1.4x EX DG for Canon Digit, Tuesday, 20 November 2007


Overall rating (weighted)
1.5
Sharpness
2.0
Build Quality
2.0
AF Speed
1.0
Value for Money
1.0
I did a lot of research on this item before I bought it. Nowhere did I read a bad review or rating and most buyers raved about how their pics remained sharp as a tack with the Sigma 120-300 mm f2.8 lens, but this is not what I experienced. All my pics are now slightly out-of-focus when I use this lens so I no longer use it and mark it off as a bad purchase.
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1 of 1 people found the following review helpful

Great match-up with the Sigma 70-200, f2.8 that gi, Friday, 13 July 2007


Overall rating (weighted)
4.8
Sharpness
5.0
Build Quality
5.0
AF Speed
5.0
Value for Money
4.0
Optically outstanding when combined with the Sigma 70-200 f2.8 EX DG. This new Sigma EX DG lens and converter is super sharp and great color that stacks up to the famed Canon L series at about 60% of the cost. I see incredible clarity at 800% magnification doing touch ups in Photoshop.

I've used both and wouldn't hesitate a second buying the Sigma DG series again.

Advanced amateur who loves Canon.
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0 of 1 people found the following review helpful

Sigma APO Teleconverter 1.4x EX DG for Canon Digit, Sunday, 27 May 2007


Overall rating (weighted)
2.5
Sharpness
2.0
Build Quality
3.0
AF Speed
2.0
Value for Money
3.0
Not compatable wth Cannon lens only selected Sigma lens
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1 of 1 people found the following review helpful

Excellent piece.... worth to buy., Monday, 19 March 2007


Overall rating (weighted)
5.0
Sharpness
5.0
Build Quality
5.0
AF Speed
5.0
Value for Money
5.0
This is an Excellent piece from Sigma, I've tried it on my APO MACRO 150mm F2.8 EX DG HSM and CANON 20D Body,the results was marvelous, no loose of sharpness, seems to be part of the original lens, you can sell your photos even ..What else ..?
The only thing I didn't like is that,with the 150mm macro lens,the 1.4x APO Tele Converter, AF operate between infinity and 0.52m, If the subject is closer than 0.52m, only MF is available,also similar case with 180mm macro ,but with different figures.
With other compatible lenses like (APO 300mm F2.8 EX DG HSM) it work fine with AF.
Finally I recommend this one over the 2X for Sigma compatible Macro lenses, since the auto focus still working.
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